The answer is A- toxic chemicals in the air
They both may have gone to a chilly area from their instincts.
Answer:
Nutrición Heterótrofa. Autótrofa
The members of the phylum arthropoda have jointed legs. the number of jointed legs are variable, may be three pairs as in cockroaches, four pairs in prawns and even hundred pairs in centipedes. Members of this phylum have ability to shed their their exoskeleton(molting) and body is divided into three fused segments - head, thorax and abdomen.
How a rock is used depends on its physical properties.